LIBM_SINGLE(3F) — FORTRAN LIBRARY ROUTINES
NAME
libm_single - FORTRAN access to single-precision libm functions and subroutines
SYNOPSIS
Example for non-intrinsics:
REAL c, s, x, y, z
...
z = r_acosh( x )
i = ir_finite( x )
z = r_hypot( x, y )
z = r_infinity()
CALL r_sincos( x, s, c )
Note: The REAL functions used are not in a REAL statement. Type is determined by the default typing rules for the letter "r".
DESCRIPTION
These subprograms provide access to single-precision libm functions and subroutines. asind(x), sind(x), etc. involve degrees rather than radians.
INTRINSICS
The following FORTRAN intrinsic functions return single-precision values if their arguments are single-precision. You need not put them in a type statement. If the function needed is available as an intrinsic function, it is simpler to use an intrinsic than a non-intrinsic function. The variables x and y are of type real.
| sqrt(x) | asin(x) | acosd(x)∗ | |||
| log(x) | acos(x) | asind(x)∗ | |||
| log10(x) | atan(x) | acosd(x)∗ | |||
| exp(x) | atan2(x,y) | atand(x)∗ | |||
| x∗∗y | sinh(x) | atan2d(x,y)∗ | |||
| sin(x) | cosh(x)∗ | aint(x) | |||
| cos(x) | tanh(x)∗ | anint(x) | |||
| tan(x) | sind(x)∗ | nint(x) |
∗ = nonstandard: it is an extension that this is intrinsic
NON-INTRINSIC FUNCTIONS AND SUBROUTINES
In general, these functions do not correspond to standard FORTRAN generic intrinsic functions, so their data types are determined by the usual FORTRAN data typing rules. The variables c, l, p, s, u, x, and y are of type real.
| r_acos( x ) | real | function | ||
| r_acosd( x ) | real | function | ||
| r_acosh( x ) | real | function | ||
| r_acosp( x ) | real | function | ||
| r_acospi( x ) | real | function | ||
| r_atan( x ) | real | function | ||
| r_atand( x ) | real | function | ||
| r_atanh( x ) | real | function | ||
| r_atanp( x ) | real | function | ||
| r_atanpi( x ) | real | function | ||
| r_asin( x ) | real | function | ||
| r_asind( x ) | real | function | ||
| r_asinh( x ) | real | function | ||
| r_asinp( x ) | real | function | ||
| r_asinpi( x ) | real | function | ||
| r_atan2(( y, x ) | real | function | ||
| r_atan2d( y, x ) | real | function | ||
| r_atan2pi( y, x ) | real | function | ||
| r_cbrt( x ) | real | function | ||
| r_ceil( x ) | real | function | ||
| r_copysign( x, y ) | real | function | ||
| r_cos( x ) | real | function | ||
| r_cosd( x ) | real | function | ||
| r_cosh( x ) | real | function | ||
| r_cosp( x ) | real | function | ||
| r_cospi( x ) | real | function | ||
| r_erf( x ) | real | function | ||
| r_erfc( x ) | real | function | ||
| r_expm1( x ) | real | function | ||
| r_floor( x ) | real | function | ||
| r_hypot( x, y ) | real | function | ||
| r_infinity( ) | real | function | ||
| r_j0( x ) | real | function | ||
| r_j1( x ) | real | function | ||
| r_jn( x ) | real | function | ||
| ir_finite( x ) | integer | function | ||
| ir_fp_class( x ) | integer | function | ||
| ir_ilogb( x ) | integer | function | ||
| ir_irint( x ) | integer | function | ||
| ir_isinf( x ) | integer | function | ||
| ir_isnan( x ) | integer | function | ||
| ir_isnormal( x ) | integer | function | ||
| ir_issubnormal( x ) | integer | function | ||
| ir_iszero( x ) | integer | function | ||
| ir_signbit( x ) | integer | function | ||
| r_addran() | real | function | ||
| r_addrans( x, p, l, u ) | n/a | subroutine | ||
| r_lcran() | real | function | ||
| r_lcrans( x, p, l, u ) | n/a | subroutine | ||
| r_shufrans(x, p, l, u) | n/a | subroutine | ||
| r_lgamma( x ) | real | function | ||
| r_logb( x ) | real | function | ||
| r_log1p( x ) | real | function | ||
| r_log2( x ) | real | function | ||
| r_max_normal() | real | function | ||
| r_max_subnormal() | real | function | ||
| r_min_normal() | real | function | ||
| r_min_subnormal() | real | function | ||
| r_nextafter( x, y ) | real | function | ||
| r_quiet_nan( n ) | real | function | ||
| r_remainder( x, y ) | real | function | ||
| r_rint( x ) | real | function | ||
| r_scalb( x, y ) | real | function | ||
| r_scalbn( x, n ) | real | function | ||
| r_signaling_nan( n ) | real | function | ||
| r_significand( x ) | real | function | ||
| r_sin( x ) | real | function | ||
| r_sind( x ) | real | function | ||
| r_sinh( x ) | real | function | ||
| r_sinp( x ) | real | function | ||
| r_sinpi( x ) | real | function | ||
| r_sincos( x, s, c ) | n/a | subroutine | ||
| r_sincosd( x, s, c ) | n/a | subroutine | ||
| r_sincosp( x, s, c ) | n/a | subroutine | ||
| r_sincospi( x, s, c ) | n/a | subroutine | ||
| r_tan( x ) | real | function | ||
| r_tand( x ) | real | function | ||
| r_tanh( x ) | real | function | ||
| r_tanp( x ) | real | function | ||
| r_tanpi( x ) | real | function | ||
| r_y0( x ) | real | function | ||
| r_y1( x ) | real | function | ||
| r_yn( n,x ) | real | function |
FILES
libm.a
SEE ALSO
intro(3M)
FORTRAN Reference Manual
Numerical Computation Guide
Sun Release 4.1 — Last change: 3 May 1994